A ceiling, not being part of the structural framework of a building, installed below the level of the underside of the floor above or of the roof Commonly used to provide space for services, e g cables, recessed lighting an piping ; to reduce the cost of heating in a room; to improve the acoustics; or to produce more aesthetically pleasing properties
Ceiling installed under a roof or floor for decorative purposes or to create technical ducting (electrical, thermal, acoustic )
A suspended ceiling is located under a floor Its role is to reduce the height to the underside of a ceiling or to hide the underside of a floor or pipes